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An Analytical Approach for Closed-Loop Power Control Error Estimations in CDMA Cellular Systems
 

Summary: An Analytical Approach for Closed-Loop Power Control Error Estimations in
CDMA Cellular Systems
Andrea Abrardo, Giuliano Benelli, Giovanni Giambene, David Sennati
Department of Information Engineering - University of Siena
Via Roma, 56 - 53100 Siena - ITALY
e-mail: abrardo@ing.unisi.it
Abstract--This paper proposes an analytical study which aims
at evaluating the received power statistics in DS-CDMA cellular
systems which use a closed-loop power control scheme to com-
pensate for fast multipath fading. The effects of a limited trans-
mission power at the mobile terminals have been also investi-
gated. This study is based on a first order Taylor expansion of
the fast fading fluctuations. The accuracy of the obtained re-
sults has been verified through computer simulations. Classical
frequency-selective channel models have been taken into account
which involve the use of a diversity RAKE receiver at the base
station. Finally, the system capacity is evaluated under different
environmental conditions.
I. INTRODUCTION
Code Division Multiple Access (CDMA) for cellular com-

  

Source: Abrardo, Andrea - Dipartimento di Ingegneria dell'Informazione, UniversitÓ di Siena

 

Collections: Engineering; Computer Technologies and Information Sciences